qgslayertreegroup.h

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/***************************************************************************
  qgslayertreegroup.h
  --------------------------------------
  Date                 : May 2014
  Copyright            : (C) 2014 by Martin Dobias
  Email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSLAYERTREEGROUP_H
#define QGSLAYERTREEGROUP_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgslayertreenode.h"
#include "qgsmaplayerref.h"
#include "qgsgrouplayer.h"
 
class QgsMapLayer;
class QgsLayerTreeLayer;
class QgsGroupLayer;
 
class CORE_EXPORT QgsLayerTreeGroup : public QgsLayerTreeNode
{
    Q_OBJECT
  public:
 
    QgsLayerTreeGroup( const QString &name = QString(), bool checked = true );
 
#ifndef SIP_RUN
    QgsLayerTreeGroup( const QgsLayerTreeGroup &other );
#endif
 
#ifdef SIP_RUN
    SIP_PYOBJECT __repr__();
    % MethodCode
    QString str = QStringLiteral( "<QgsLayerTreeGroup: %1>" ).arg( sipCpp->name() );
    sipRes = PyUnicode_FromString( str.toUtf8().constData() );
    % End
#endif
 
    QString name() const override;
 
    void setName( const QString &n ) override;
 
    QgsLayerTreeGroup *insertGroup( int index, const QString &name );
 
    QgsLayerTreeGroup *addGroup( const QString &name );
 
    QgsLayerTreeLayer *insertLayer( int index, QgsMapLayer *layer );
 
    QgsLayerTreeLayer *addLayer( QgsMapLayer *layer );
 
    void insertChildNodes( int index, const QList<QgsLayerTreeNode *> &nodes SIP_TRANSFER );
 
    void insertChildNode( int index, QgsLayerTreeNode *node SIP_TRANSFER );
 
    void addChildNode( QgsLayerTreeNode *node SIP_TRANSFER );
 
    void removeChildNode( QgsLayerTreeNode *node );
 
    void removeLayer( QgsMapLayer *layer );
 
    void removeChildren( int from, int count );
 
    void removeChildrenGroupWithoutLayers();
 
    void removeAllChildren();
 
    QgsLayerTreeLayer *findLayer( QgsMapLayer *layer ) const;
 
    QgsLayerTreeLayer *findLayer( const QString &layerId ) const;
 
    QList<QgsLayerTreeLayer *> findLayers() const;
 
    void reorderGroupLayers( const QList< QgsMapLayer * > &order );
 
    QList<QgsMapLayer *> layerOrderRespectingGroupLayers() const SIP_SKIP;
 
    QStringList findLayerIds() const;
 
    QgsLayerTreeGroup *findGroup( const QString &name );
 
    QList<QgsLayerTreeGroup *> findGroups( bool recursive = false ) const;
 
    static QgsLayerTreeGroup *readXml( QDomElement &element, const QgsReadWriteContext &context ) SIP_FACTORY;
 
    static QgsLayerTreeGroup *readXml( QDomElement &element, const QgsProject *project, const QgsReadWriteContext &context ) SIP_FACTORY;
 
    void writeXml( QDomElement &parentElement, const QgsReadWriteContext &context ) override;
 
    void readChildrenFromXml( QDomElement &element, const QgsReadWriteContext &context );
 
    QString dump() const override;
 
    QgsLayerTreeGroup *clone() const override SIP_FACTORY;
 
    void resolveReferences( const QgsProject *project, bool looseMatching = false ) override;
 
    void setItemVisibilityCheckedRecursive( bool checked ) override;
 
    bool isMutuallyExclusive() const;
 
    void setIsMutuallyExclusive( bool enabled, int initialChildIndex = -1 );
 
    QgsGroupLayer *groupLayer();
 
    void setGroupLayer( QgsGroupLayer *layer );
 
    QgsGroupLayer *convertToGroupLayer( const QgsGroupLayer::LayerOptions &options ) SIP_FACTORY;
 
  protected slots:
 
    void nodeVisibilityChanged( QgsLayerTreeNode *node );
 
  protected:
 
    void updateChildVisibilityMutuallyExclusive();
 
    QString mName;
 
    bool mChangingChildVisibility = false;
 
    bool mMutuallyExclusive = false;
 
    int mMutuallyExclusiveChildIndex = -1;
 
    virtual void makeOrphan() override SIP_SKIP;
 
  private:
 
#ifdef SIP_RUN
 
    QgsLayerTreeGroup( const QgsLayerTreeGroup &other );
#endif
 
    QgsLayerTreeGroup &operator= ( const QgsLayerTreeGroup & ) = delete;
 
    void init();
    void updateGroupLayers();
    void refreshParentGroupLayerMembers();
 
    QgsMapLayerRef mGroupLayer;
};
 
 
#endif // QGSLAYERTREEGROUP_H